Specifications
LI19 datalogger
| output on display | heat flux, solar radiation |
| Input | analogue voltage |
| Conversion | division by the sensor sensitivity |
| Display definition | 4 digits with sign |
| Display refreshment rate | 1 s⁻¹ |
| Calibration uncertainty | 0.1 % |
| Temperature dependence | < 0.5 % + 3 x 10⁻⁶ V over rated range |
| Sample rate | 2 s⁻¹ |
| Rated input range | 6.25 to 200 x 10⁻³ V (selectable) |
| A/D conversion | 16 bits |
| Stored measurement definition | minimum maximum and average over storage interval with conversion to W/m² |
| Storage capacity | 3518 measurements |
| Storage interval range | 2 to 65535 s (selectable) |
| Compatibility with Hukseflux sensor models | SR05-A1, HFP01, SBG01, HF03 |
| Battery type | 2 x AA |
| Internal power supply voltage | 3 VDC |
| Battery life | > 50 days (on fresh batteries) |
| Rated operating temperature range | -10 to +40 °C |
| System requirements for use with PC | Windows XP and higher |
| Connection to PC | USB 1.1 / 2.0 low speed |
| User interface on PC | LI19 software |
| IP protection class | IP40 |
| Connection to sensor | 2 x (female chassis plug for 4 mm banana with screwed signal wire clamp) |
| Weight | 0.175 kg (net) 1.3 kg with carrying case |
| Dimensions LI19 | (70 x 146 x 25) mm |
| Dimensions transport case | (400 x 300 x 120) mm |
Options
Downloads
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(PDF, 632.77 KB)
LI19 may be used with pyranometers and heat flux sensors
LI19 is typically used to display the measured solar radiation or heat flux. It measures a DC voltage. Once programmed with the sensitivity of the connected sensor, the display will show the actual value of the heat flux or solar radiation in W/m². LI19 is programmed through its PC user interface. We recommend downloading the latest software. LI19 is battery powered, using 2 x AA-type batteries. Fresh batteries allow more than 50 days of operation. The system is supplied in a practical transport case, for easy transport and protection during field measurement campaigns. LI19 is built for easy use with a large size LCD, displaying quantities in W/m², and a USB connection. LI19 may be used with pyranometers and heat flux sensors.
Suggested use
- short-term field measurement of solar radiation or heat flux
- amplification of heat flux sensor signals
- education in solar energy
LI19 datalogger
- high accuracy handheld read-out unit / datalogger
- easy transport and protection during field measurement campaigns
- supplied in a practical transport case
- Fresh batteries allow more than 50 days of operation
